Merge pull request #1 from Azure/dev/abhishekkuma/creating_dotnet_console_app

Hawaii-Cli tool to generate config for runtime Engine

Author: abhishekkumams

Hawaii-Cli/.gitignore

@@ -0,0 +1,17 @@
+## Ignore Visual Studio temporary files, build results, and
+## files generated by popular Visual Studio add-ons.
+##
+## Get latest from https://github.com/github/gitignore/blob/master/VisualStudio.gitignore
+
+# Generated Files
+/bin
+/obj
+
+# Local History for Visual Studio
+.localhistory/
+.vs/
+/.vscode
+*.code-workspace
+
+# Nuget package
+/nupkg

Hawaii-Cli/Classes/CommandLineHelp.cs

@@ -0,0 +1,75 @@
+using System;
+using System.Collections.Generic;
+using CommandLine;
+using CommandLine.Text;
+
+namespace Hawaii.Cli.Classes
+{
+    public class CommandLineHelp
+    {
+
+        /// <summary>
+        /// For displaying help with a command argument of --help
+        /// </summary>
+        public static void DisplayHelp<T>(ParserResult<T> result, IEnumerable<Error> errs)
+        {
+
+            var help = HelpText.AutoBuild(result, helpText =>
+            {
+                helpText.AdditionalNewLineAfterOption = false;
+                helpText.Heading = "See all the available options";
+
+                return HelpText.DefaultParsingErrorsHandler(result, helpText);
+
+            }, e => e);
+
+            Console.WriteLine(help);
+            Environment.Exit(0);
+        }
+
+        /// <summary>
+        /// Parse command line for expected arguments
+        /// </summary>
+        /// <param name="args">incoming program arguments</param>
+        public static void ParseArguments(string[] args)
+        {
+            Parser parser = new CommandLine.Parser(with => with.HelpWriter = null);
+
+            ParserResult<CommandLineOptions> results = parser.ParseArguments<CommandLineOptions>(args);
+
+            var command = args.AsQueryable().FirstOrDefault();
+            string entity = "";
+
+            switch (command)
+            {
+                case "init":
+                    results.WithParsed<CommandLineOptions>(Operations.Init)
+                           .WithNotParsed(errors => CommandLineHelp.DisplayHelp(results, errors));
+                    break;
+
+                case "add":
+                    entity = args.AsQueryable().ElementAt(1);
+                    results.WithParsed<CommandLineOptions>(opt => Operations.Add(entity, opt))
+                            .WithNotParsed(errors => CommandLineHelp.DisplayHelp(results, errors));
+                    break;
+
+                case "update":
+                    entity = args.AsQueryable().ElementAt(1);
+                    results.WithParsed<CommandLineOptions>(opt => Operations.Update(entity, opt))
+                            .WithNotParsed(errors => CommandLineHelp.DisplayHelp(results, errors));
+                    break;
+
+                default:
+                    results.WithNotParsed(errors => CommandLineHelp.DisplayHelp(results, errors));
+                    Console.WriteLine($"ERROR: Could not execute because the specified command was not found.");
+                    Console.WriteLine("please do init to initialize the config file.");
+                    break;
+
+            }
+
+        }
+    }
+
+
+
+}

Hawaii-Cli/Classes/CommandLineOptions.cs

@@ -0,0 +1,55 @@
+using System;
+using CommandLine;
+
+namespace Hawaii.Cli.Classes
+{
+    public sealed class CommandLineOptions
+    {
+        [Option('n', "name", Required = false, HelpText = "file name")]
+        public String? name { get; set; }
+
+        [Option("database-type", Required = false, HelpText = "Type of database to connect")]
+        public String? databaseType { get; set; }
+
+        [Option("connection-string", Required = false, HelpText = "Connection details to connect to database")]
+        public String? connectionString { get; set; }
+
+        //TODO: Link options with Specidied commands
+        // we need to make sure certain options are only required with certain commands.
+        // for example: source is required only with add/update and not init
+
+        [Option('s', "source", Required = false, HelpText = "name of the table")]
+        public String? source { get; set; }
+
+        [Option("rest", Required = false, HelpText = "route for rest api")]
+        public String? restRoute { get; set; }
+
+        [Option("graphql", Required = false, HelpText = "Type of graphQL")]
+        public String? graphQLType { get; set; }
+
+        [Option("permission", Required = false, HelpText = "permission required to acess source table")]
+        public String? permission { get; set; }
+
+        [Option("fields.include", Required = false, HelpText = "fields that are allowed access to permission")]
+        public String? fieldsToInclude { get; set; }
+
+        [Option("fields.exclude", Required = false, HelpText = "fields that are excluded from the action lists")]
+        public String? fieldsToExclude { get; set; }
+
+        [Option("relationship", Required = false, HelpText = "specify relationship between two entities")]
+        public String? relationship { get; set; }
+
+        [Option("target.entity", Required = false, HelpText = "specify relationship between two entities")]
+        public String? targetEntity { get; set; }
+
+        [Option("cardinality", Required = false, HelpText = "specify relationship between two entities")]
+        public String? cardinality { get; set; }
+
+        [Option("mapping.fields", Required = false, HelpText = "specify relationship between two entities")]
+        public String? mappingFields { get; set; }
+
+        [Option(Default = false, HelpText = "Prints all messages to standard output.")]
+        public bool Verbose { get; set; }
+
+    }
+}